3.2.3- Dynamic equilibrium

What is La Chatelier's principle?

When a chemicsl sustem in dynamic equilibrium is subjected to a change, the position if the equilibrium woll shift to minimise that change

What's the affect of changing concentration

Increasing concentration of a reactant will love the position of the equilibrium to the right to form more products

Increasing the concentration of one of the products will move the equilibrium to the left forming more reactants

Effect of changing pressure

Increasing total pressure moves the position of equilibrium to the side with the least number of molecules which will exert less pressure

Decreasing total pressure moves the equilibrium to the side woth the greater number of molecules of molecules to exert more pressure

Effect of changing temperature

Increasing the temperature of a reaction moves the position in the endothermic direction absorbing more energy- lowering the temperature

Decreasing the temperature of the reaction Ives the position of the equilibrium in the exoteric direction releasing more energy to raise the temperature

What's a homologous equilibrium

Equilibrium where all species in the reaction have the same physical state

heterogenous equilibrium

Equilibrium in which the species in the reaction are in different physical states

Equilibrium constant

aA+ bB->cC +dD

Kc= [C]^c+[D]^d
———————
[A]^a+ [B]^b
[ ] means concentration in Moldm-3